None.
A square foot is a measure of area whereas a yard is a measure of distance. The two measures are incompatible and it makes no sense to try and convert from one to the other.
27.7778 square yards.
470 sq. yards = 4230 sq. feet
43560 sqfeet are in a acre
3
3.3sq.feet
80 yards=80 yards
1760 yards
0.33 yards.
An acre is equal to 4,840 square yards.
36.5 miles are equal to 64,240 yards.
36 inches equal 3 yards.
3 yards 3 yards